#pragma once
#include <iostream>

using namespace std;

class Date
{
	friend ostream& operator<<(ostream& out, const Date& d);
	friend istream& operator>>(istream& in, Date& d);
public:

	int GetmonthDay(int year,int month)
	{
		int days[] = { -1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
		if (month == 2 && (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))
		{
			return 29;
		}
		return days[month];
	}
	Date(int year = 1, int month = 1,int day = 1);
	//Date(Date& d);
	//Date& operator=(Date& d);
	Date& operator+=(int day);
	Date operator+(int day);
	Date& operator-=(int day);
	Date operator-(int day);
	bool operator<(const Date& d);
	bool operator<=(const Date& d);
	bool operator>(const Date& d);
	bool operator>=(const Date& d);
	bool operator==(const Date& d);
	bool operator!=(const Date& d);
	int operator-(const Date& d);
	Date& operator++();
	Date& operator--();
	Date& operator++(int);
	Date& operator--(int);
	void Print();
	//Date& operator=(Date& d);

private:
	int _year;
	int _month;
	int _day;
};



